.drag_modal {
    position: fixed;
    top: 0;
    padding: 0;
    z-index: 998;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
    transition: opacity .3s;
}

.drag_content {
    position: fixed;
    z-index: 999;
    box-sizing: border-box;
    background: rgba(0, 0, 0, 0);
    font-size: 14px;
    height: 100%;
    width: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
}


.drag_content .drag_head,
.drag_content .drag_foot {
    position: relative;
    box-sizing: border-box;
    padding: 0 10px;
    height: 40px;
    line-height: 40px;
    background: rgba(0, 0, 0, 0);
    font-size: 16px;
}
.drag_content .drag_head{
    position: absolute;
    top: 0;
    width: 100%;
}
.drag_content .drag_head .drag_close {
    background-color: rgba(0, 0, 0, .5);
    border-radius: 50%;
    cursor: pointer;
    height: 80px;
    overflow: hidden;
    position: absolute;
    right: -40px;
    top: -40px;
    -webkit-transition: background-color .15s;
    transition: background-color .15s;
    width: 80px;
    
}
.drag_content .drag_head .drag_close::before{
    background-image: url("");
    position: absolute;
    content: "";
    background-position: -260px 0;
    background-repeat: no-repeat;
    background-size: 280px;
    color: transparent;
    display: block;
    font-size: 0;
    height: 20px;
    width: 20px;
    line-height: 0;
    top: 55px;
    left: 25px;
    transform: translate(-50%,-50%);
}

.drag_content .drag_main {
    box-sizing: border-box;
    padding: 10px;
    min-height: 100px;
    height: calc(100% - 300px);
}

.drag_content .drag_foot {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    background: #FFF;
}

.drag_content .drag_foot .drag_button {
    box-sizing: border-box;
    margin-left: 10px;
    padding: 0 10px;
    height: 25px;
    line-height: 25px;
    border: 1px solid #AAA;
    font-size: 14px;
    color: #000;
    background: lightblue;
}